Netdb debug tool #35677
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Netdb debug tool #35677
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fcrisciani
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fcrisciani
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Dec 1, 2017
vendor.conf
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| @@ -30,7 +30,7 @@ github.com/moby/buildkit aaff9d591ef128560018433fe61beb802e149de8 | |||
| github.com/tonistiigi/fsutil dea3a0da73aee887fc02142d995be764106ac5e2 | |||
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| #get libnetwork packages | |||
| github.com/docker/libnetwork 72fd7e5495eba86e28012e39b5ed63ef9ca9a97b | |||
| github.com/docker/libnetwork fd95ac779f2b9fc3cbd2c256a22887e26f479653 https://github.com/fcrisciani/libnetwork | |||
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waiting for libnetwork side to be in
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libnetwork side; moby/libnetwork#2027 |
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Windows CI failed: |
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thaJeztah
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Dec 6, 2017
daemon/reload.go
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| } | ||
| // Enable the network diagnose if the flag is set with a valid port withing the range | ||
| if conf.IsValueSet("network-diagnose") && conf.NetworkDiagnose > 0 && conf.NetworkDiagnose < 65536 { | ||
| logrus.Infof("Calling the diagnose start with %d", conf.NetworkDiagnose) |
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Wondering if we should make this a warning; having this option enabled without knowing it is enabled may be dangerous, correct?
cmd/dockerd/config.go
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| @@ -59,6 +59,7 @@ func installCommonConfigFlags(conf *config.Config, flags *pflag.FlagSet) { | |||
| flags.IntVar(&maxConcurrentDownloads, "max-concurrent-downloads", config.DefaultMaxConcurrentDownloads, "Set the max concurrent downloads for each pull") | |||
| flags.IntVar(&maxConcurrentUploads, "max-concurrent-uploads", config.DefaultMaxConcurrentUploads, "Set the max concurrent uploads for each push") | |||
| flags.IntVar(&conf.ShutdownTimeout, "shutdown-timeout", defaultShutdownTimeout, "Set the default shutdown timeout") | |||
| flags.IntVar(&conf.NetworkDiagnose, "network-diagnose", -1, "TCP port number of the network diagnose server") | |||
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Can we make the default 0 or is that a valid port?
Also, per our discussion; I think we wanted to make this a config-file only feature (i.e., only support setting this on daemon.json, but not through a flag. Not sure if a flag is required to make the config work (I think we can do without), but if it's required, we can hide the flag perhaps?
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Also s/diagnose server/diagnostics server/ ?
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@thaJeztah 0 means pick an available port automatically for me
let me add some bikeshed too :D
could we maybe use port in the flag name ? such as "metrics-addr" instead of just "metrics" ? When I look at the current flag it looks like a bool to me.
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like network-diagnostic-port ?
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My reason for 0 was that it's the default value for an integer; while we do -1 for other options, most we use it if 0 itself is a valid value.
Agree on adding -port (was thinking about that, but thought it may be too verbose)
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December 6, 2017 13:19
Add a new configuration option to allow the enabling of the networkDB debug. The option is only parsed using the reload event. This will protect the daemon on start or restart if the option is left behind in the config file Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
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thaJeztah
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Experimental failure is not related; |
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Merging, after discussion with @vieux since the failures are not related |
This was referenced Dec 18, 2017
Closed
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This also includes moby/libnetwork#1976, which fixes #35261 |
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- What I did
New daemon config for networking diagnose
-How I tested it
Added a unit test in the reload_test section
- Description for the changelog
Add a new daemon config to enable the diagnose server for the networking layer
The libnetwork vendoring also bring:
Fix for #34515
Fix for watchMiss leak and ipvs deadlock
Netlink revendoring for netlink timeout: vishvananda/netlink@bd6d5de...b2de5d1
Libnetwork revendoring: moby/libnetwork@64ae588...9bca9a4
- A picture of a cute animal (not mandatory but encouraged)
